Results 271 to 280 of about 24,718,058 (326)
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SPE Drilling Engineering, 1989
Summary This paper describes an analytical technique that calculates the fluid velocities and pressures under a surface-set diamond bit. The technique is based on solving the continuity and energy equations for a series of flow cells that covers the bit face.
T. M. Warren, Suzanne M. Behr
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Summary This paper describes an analytical technique that calculates the fluid velocities and pressures under a surface-set diamond bit. The technique is based on solving the continuity and energy equations for a series of flow cells that covers the bit face.
T. M. Warren, Suzanne M. Behr
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Computer model of tetrahedral amorphous diamond
Physical Review B, 1995We computer generate a model of amorphous diamond using the Wooten-Weaire method, with fourfold coordination everywhere. We investigate two models: one where four-membered rings are allowed and the other where the four-membered rings are forbidden; each model consisting of 4096 atoms.
, Djordjevic, , Thorpe, , Wooten
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Modeling of diamond radiation detectors
Journal of Applied Physics, 2004We have built up a computer simulation of the detection mechanism in the diamond radiation detectors. The diamond detectors can be fabricated from a chemical vapour deposition polycrystalline diamond film. In this case, the trapping-detrapping and recombination at the defects inside the grains and at the grain boundaries degrade the transport ...
Milazzo, L, Mainwood, A
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Competitiveness Model—A Double Diamond
Journal of the Knowledge Economy, 2011Since Schumpeter, it has been assumed that innovation typically plays a key role in competitiveness at firm, industry and national levels. This assumption has been applied to firms both in developed and developing countries. However, the innovative capacity and business environments of firms in developing countries are different from these of firms in ...
Elias G. Carayannis +1 more
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Leveraging Porter's Diamond Model: Public Sector Insights
The Critical Review of Social Sciences StudiesPurpose: The study is a critical analysis of competitiveness and operational dynamism of a public sector non-profit making organization, the Punjab Agriculture and Meat Company (PAMCO), using the analytical tool of Porters Diamond Model.
Muhammad Zaurez Afshar +1 more
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Assessing national renewable energy competitiveness of the G20: A revised Porter's Diamond Model
Renewable & Sustainable Energy Reviews, 2018To ensure energy security and tackle global challenges, such as climate change and environmental degradation, governments have formulated and implemented various public policies to encourage the development and utilization of renewable energy worldwide ...
Kai Fang +4 more
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International competitiveness of Chinese textile and clothing industry – a diamond model approach
Journal of Chinese Economic and Foreign Trade Studies, 2019PurposeThe purpose of this paper is to analyze raw materials, labor, capital, demand, related industries, strategies and policies influencing international competitiveness of Chinese textile and clothing industry.Design/methodology/approachThe analysis ...
Z. Guan +3 more
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A modelling of diamond nucleation
Diamond and Related Materials, 1995Abstract Recently we proposed a model for diamond nucleation by means of the substrate bias pretreatment method. In order to verify the effectiveness of this model, the nucleation process was directly observed by transmission electron microscopy (TEM).
S. Yugo +4 more
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Modelling transition metals in diamond
Diamond and Related Materials, 2002Abstract Transition metal impurities — common contaminants in synthetic high temperature high pressure diamond — are examined to determine their stability and hence, solubility. The method is computational and allows the investigation of metals, which have not yet been detected spectroscopically — although they may actually be present in the diamond.
Johnston, K, Mainwood, A
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International Small Business Journal, 2018
This article explores the dynamics of initiating and implementing an engaged scholarship approach by taking a current research project relating to small business development and employing Van de Ven’s diamond model to frame a personal critical reflection
F. Whitehurst, P. Richter
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This article explores the dynamics of initiating and implementing an engaged scholarship approach by taking a current research project relating to small business development and employing Van de Ven’s diamond model to frame a personal critical reflection
F. Whitehurst, P. Richter
semanticscholar +1 more source